Coiling-machine



c NNNNNNNNNNNNNN .l IIIIIIIIIIIIIIIIIIIIIIIIIIII 9.

Y 41,395,190.- Patented 001:25, 1921. asHEETv sssssss 1.

1 HUI Il v "Imi I| i L F l LAMB. COILING MACHINE. APPLICATION FILED NOV. 4,1919.

L f 2. w .m M .El I F fr 0m ow D1 o. W. 9 1, 5 9 s, M .1,

T. F.'LAMB.

colLING MACHINE.

APPLICATION FILED NOV- 4, i919. I 1,395,190, I Patented Oct. 25, 1921.

3 SHEETS-SHEET 3.

MUNI;

um m

dita/lug 'slippage between the stock and the UNITED STATES PATENT OFFICE.

THOMAS F. LAMB, 0F MANSFIELD, GHIO.

To all whom it may concern.'

Be it knownthatl, `THOMAS F. LAMB, a citizen of the United States of America, residing at Mansfield, in the county of Richland and State ofOhio, have invented cer tain new and useful Improvements in a Coiling-Machine, of which the following is a specification. Y

This invention relates to a coiling `machine which is especially adapted for use in the manufacture of lock washers andthe like.

The primary object of this invention is to construct a coiling machine with means of rotating a mandrel and means of feeding stock thereto consisting of feed rollers which can be arranged and positioned to continu ously feed and force the stock to coil around and off of mandrels of predetermined sizes without fracturing or otherwise injuring the fibers of the metal.

' Further objects are to provide means of rotating the perimeters ofthe feed rollers and themandrel so as to rotate the perimeters of the coils being formed onthe mandrel at a speed or ratio to the feed rollers that will equal the travel of the perimeters of the rolls to prevent slippage of the stock between the rollers and mandrel.y

e A further Iobject is to provide means of forming coils of different diameters or sizes from the same or different sizes of stock without changing the driving means of the feed rollers or mandrel, but in lieu thereof changing the diameters of the feed'rollers to correspond with the diameter of the coil itV is'desired to make or size of the stock used, thereby providing for accurate, pref cise, uniform and equal travel ofthe perimeters of them'feed yrollers and mandrel for making any and all ysizes of coils without parts operating on the stock.

Another object of this invention is to provide means of 1adjustably and slidably mounting the bearings of the shafts to which the feed rollers and the mandrel are secured to afford yfacilities for varying the friction applied tothe stock by the feed rollers that cooperate with the mandrel to perform thefunctions of feeding andcoiling the stock.

Another object is to provide a means of adjustably'mounting an intermediate gear to mesh with and operate between the drivinggearsof the kfeed roller slji'afts-to permit i cornme-MacriINE.

I Specification of Letters Patent. Patented Oct 25 1921.` Application filed November 4, 1919.

serial No. 335,702.

of the adjustment ofthe intermediate gear to correspond with the adjustment of the shaft bearings. 1

These and other objects are attained by the mechanism illustrated in the accompanymg drawing in which:

Figure 1 is a plan or top view of a coiling machine.

Figz 2 is a side elevation of Fig. 1 showing diagrammatically the means'ofrtransmitting and imparting movement tothe coiling mechanism. l Fig. 3 shows a side elevation of the coilmg mechanism.

F ig. 4 is a front elevation ofthe coiling mechanism showing some of the parts in sections.

Fig. 5 shows the end of the rotating shaftV modified in construction to receive and permit the removal of split bushings for VdifferentVsizes of mandrels.

Reference numerals 1, 2 and 3 respectively represent a conventional type of frame work upon whichthe coiling mechanism` is mounted. Portions of thev members 5 and 2 of the' frame work are cut away at 4 to. provide guide ways to receive and slidably engage the shouldered or grooved portions of bearings 5, 6 and 7 to journal the shaftsS,` 9" and 10 which are shown in the drawing and arranged in vertical parallel relation to each other. Y

A frictional feed roller 11 is mounted upon the projecting end portion 12 of the' shaft 8 and Vits perimeter f is preferably formed smooth. A similar roller 13 is journaled on the projecting end 14 of the roller 10 and alined directly underneath the roller 11. The perimeter of the roller 13 is provided with one Vormore grooves 15, the bottom diameter'of whichv corresponds with the diameter of the frictional feed roller 11 to provide for the same speed of rotation or travel of the perimeter of the frictional roller 11 and bottom of groove 15 of the roller 13. One or more` groovesl 15 can be formed in the roller 18 to providek ribs 16.and 17 to regulate and govern the spread or space'18 betweenthecoils "or stock 19.

A suitable aperture'is provided inthe end 20 of the shaft V9 to receive a split .bushing 21 into which a mandrel 22 is fitted and rigidlysecured to the shaft by a set screw` 23. The end 24 ofthe mandrel preferably preiectsbeyoad the and .2o of thwhaa 9 ico flush with the outer sides of the feed rollers l1 and 13.

Y It will be observed that the feed rollers and rotatabl-e mandrel are arranged invertical aliuement with each other so that the axis of all shafts can be varied with respect to eacli other by adjusting the sliding joui'- nal boxes 5, 6 and 7 for a purpose which .will be described hereinafter.

The means for actuating the mechanisml described is as follows:

A drive pulley 25 is preferably mounted and rigidly. secured to the projecting end of a shaft 27 which is j ournaled in bearings 26. Then movement is imparted yto the pulley 25 the pinion 28 is actuated transmitting movement to a gear 29 which is loosely mounted upon a shaft 30. The pinion 3i which is rigidly connected to the pinion 29 meshes with and imparts movement to a gear 32 the'reby rotating the shaft l() and feed roller 13 in the directions indicated by the arrow.

An intermediate gear 33 is secured to a bracket 34 which is pivotally secured to the shaft 10 and is adapted to be adjusted'to V properly mesh with'the-gear V32. Movement is transmitted `from lthe gear 33 to al gear 35 which in turn rotates the shaft 8 ,and

the feed roller 11 inthe same ,direction Vandat the same speed as the shaft 10 and roller 13, l

ln order .to` transmit' movement to the shaft 9 andthe mandrel 22 secured thereto a gear 36 is Vmounted on and rig-idly secured to the shaft 27 which transmits movement to the gears 37and. 38 which are loosely mounted on suitable shafts. A gear 38 meshes with a gear 39 which is rigidly 'secured to the shaft 9 thereby driving or rotating the shaft 9 and mandrel 22 and the feedrollers' 171- and i3 ina eounterclockwise direction ;(see arrow). To perform ,the

functions of feeding the stock to the mandrel and coiling same around the mandrel it lhas been found in practice Itliatthe coiling operations are performed more efficiently when the mandrel is rota/ted*substantially upon the ratio of .5 to i with respect to the speed of rotation of the feeding rollers as` it permits of the .use of larger feeding rollers.V 'i

" The stock 1.9 is' rdrawn from. any source of'supplyV and lient in the first instance at,

its freevendto conformwiththe size of the mandrel used and is placed thereon preparaf tory to .commencingfthe .operation of lCQnflihoohiL rolling Lof the.. stock as shov'hln ety '3 and r4', r'llhe frictionalffeed -roller :1l in its rotationin the :direction shown bythe arrowfr-ictionallv contacts more or less with the perimeters of one or vmore coils andcon:

tinuously draws Eandfeeds the stock 19 from.

the `Souroe ofohpplv and, fotoos it to' form around the projecting end 24 ofthe mandrel lr groot e lo of such Size as 22 in coperation with the feed roller 13 which is rotated in the same direction as the feed roller 11 (as indicated by the arrows),y The contact of the bottom of the with the perimeter of the coil assists i feeding and forming .the stock around the mandrel and at the same time the ribsl, and 17`1formed on the roller 13 actuates each coil to wind off the convolution thereof in sequence at the end 24 of the mandrel continuously during Vthel yoperation of .the ceiling mechanism.`

- In order to vary'the pressure or friction of the feed rollers upon thestock 19 means are employed to vexert a pressure on the shafts carrying the feed rollers which are mounted in adjustable journals. `A conventional means of exerting such pressure is shown on .the drawings and4 consists lof a pin 41 secured to the frame work of the soV ceiling mechanism and a T-lever bar 42 which Y has its end 43 formed togpivotally engage the pin 4l. The lever fbaris adapted to con.- tact withand rest at one end upon the shaft 8 ,exerting a pressure vthereon forcing the feed rollers 1 1 and 1,3.in more or less frictional contact with the perimeter of the coil that is being formed.

The pressure or friction exerted by .the rollers upon the perimeter of the coils is varied more orfless by adjustingthe weight 44 back and shown in Fig. l. Y. j l j 1n order to. provide against oXoosSi-re Sliding mov-omontof thoboeross toward, each other spacingv blocks 45 are litted `be tween the bearings to provide positive stops or supports. The blocks, however. are made l ivilllpermit of tjhe desired fractional contact between the perimeters of the feed rollers andthe perimeters of the coils.

.The diameters of the feed rollers are determined Vby the size of the stock, and diamter the coils it is desired .to make figured oh a v loaSS t.o oquollzo the travel of the perimeters ofthe coil andI feed rollers,V

.ltvlll ho noted that in tho uso and oiloratlon ofY feeding rollers of dlorontdamoters thcfuse ofdiiferentsizes of vmandrels Y and of'feeding' different sizes of stock for the purpose intended that vthe journal boxes orlbeerinss foftheshefts. 849 and. 10 vill bo arranged' or positioned farther apart or] in closer relation to other therebycliingingl the relationofthe driving lgears forth upon thelever rod42 as 'Y Vcoil before they stop or support thesliding in which event the intermediate gear 33 is adjusted to correspond with any change made and is heldL in place by the clamping bolts 46 and 4:7.

I claim:

l. In a coiling machine, a frame, vertically alined guideways formed in said frame, journal boxes slidably fitted to said guideways, shafts journaled in said boxes in spaced relation to each other, rollers secured to two of said shafts in alinement with each other, means to impart movement to said shafts in the same direction, a third shaft interposed between the firstmentioned shafts and in direct vertical alinement therewith,a mandrel fitted to the third shaft, means to impart movement to the third shaft'in an opposite direction to that of the first-mentioned shafts as and for the purpose described.

2. In a coiling machine, a frame, vertically alined guideways formed in said frame, journal boxes slidably fitted to said guideways, shafts journaled in said boxesA in spaced relation to each other, rollers secured to two of said shafts in alinement with each other, means to impart unisonal movement to said shafts in the same direction, a third shaft interposed between the first-mentioned shafts and in direct alinement therewith, a mandrel fitted to the third shaft, means to impart movement to the third shaft in an opposite direction to that of the rstmentioned shafts and means to exert a pressure upon one of the shafts to hold the sliding journal boxes of all of the shafts in predetermined yielding positions.

3. In a ceiling machine, a frame, vertically alined guideways formedin said frame, journal boxes slidably fitted to said guideways, shafts journaled in said boxes in spaced relation to each other, rollers secured to two of said shafts in alinement with each other, means to impart movement to said shafts in the same direction, a third shaft interposed between the first-mentioned shafts and in direct alinement therewith, a mandrel fitted to the third shaft, means to impart movement to the third shaft in an opposite direction to that of the first-mentioned shafts, means to exert a pressure upon one of the shafts to hold the slidingvjournal boxes of all of the shafts in predetermined yielding positions and means to impart movement to all of the shafts irrespective of the size of the rollers.

4l. In a ceiling machine, rollers vertically adjustable arranged in spaced relation and in vertical alinement with respect to each other, a mandrel adjustably arranged between said rollers and in axial vertical alinement with said rollers, means to rotate said rollers in the same direction, means to rotate the mandrel oppositely to the rollers and adjustable weighted means to force the rollers to exert a predetermined pressure on the stock to coil same around the mandrel.

5. In a coiling machine, rollers vertically adjustable arranged in spaced relation and in vertical alinement with respect to each other, a mandrel adjustably arranged between said rollers and in axial alinement with said rollers, means to rotate said rollers in the same direction, means to rotate the mandrel in an opposite direction to that of the rollers, adjustable means to force the rollers to exert a predetermined pressure on the stock to coil same around the mandrel, the operating means for rota-ting the mandrel and rollers being operable to impart movement thereto irrespective of the size of the mandrel or rollers.

6. In a coiling machine, a frame, vertical guideways formed therein, slidable boxes fitted to said guideways, two shafts journaled in said boxes in spaced relation and in vertical alinement with each other, rollers mounted on said shafts in alinement with each other in combination with another shaft provided with a mandrel which is j ournaled in slidable boxes and interposed between said rollers and means to rotate the shaft of the mandrel and the shafts of the rollers in opposite directions.

7. In a coiling machine, a frame, vertical guideways formed therein, slidable boxes fitted to said guideways, two shafts journaled in said boxes in spaced relation and in vertical alinement with each other, rollers mounted on said shafts in alinement with each other in combination with another shaft, provided with a mandrel which is journaled in said slidable boxes and interposed between said rollers and in alinement therewith, means to rotate the shaft of the mandrel and the shafts of the rollers in opposite directions and a weight to exert a pressure on one of said shafts which is adapted to be adjusted to exert different pressures thereon.

8. In a ceiling machine, means for adjustably journaling three shafts in vertical alinement with each other, rollers secured to two of said shafts, a mandrel secured to one of said shafts which is arranged to opera-te between said rollers and in axial alinement therewith, means to rotate the rollers in unison in one direction, means to rotate the mandrel in an opposite direction with respect to the rollers, a weight and means to exert different pressures upon one of said shafts through the medium of the weight to force the feed rollers in contact with the stock and coil same on the mandrel.

In testimony whereof I affix my signature.

THOMAS F. LAMB. 

